CVE-2026-35056
High
Description
XenForo before 2.3.9 and before 2.2.18 allows remote code execution (RCE) by authenticated, but malicious, admin users. An attacker with admin panel access can execute arbitrary code on the server.
SeverityHigh
CVSS7.2
Exploit probability—
Product
Xenforo
PublishedApr 1, 2026
First seenApr 1, 2026
Weakness typeCWE-94Code injection
How to fix
Update
- xenforo xenforo2.2.18, 2.3.9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| xenforo xenforo | v < 2.2.18, 2.3.0 ≤ v < 2.3.9 | 2.2.18, 2.3.9 |
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